KVM switch Gembird DSU-21

The Gembird DSU-21 KVM switch lets you share USB devices and control two computers with a single set of peripherals. It provides USB Type-A and Type-B connectors and is suitable for connecting a keyboard, mouse and USB peripherals such as printers or scanners. The compact white housing (85 × 120 × 28 mm) and light weight make it easy to place on a desk without needing an external power supply.

Advantages

The switch supports sharing a single USB device between two computers and can also work with several devices when used with a USB hub. It requires no external power supply, uses standard USB-A and USB-B connectors for compatibility with common peripherals, and is RoHS certified for environmental compliance.

Suitable for

• Sharing a printer between two computers
• Connecting a scanner to two workstations
• Using a single USB hub or other USB peripherals with two PCs
• Small office or home setups where desk space is limited

Key specifications

• Brand: GEMBIRD
• Model: DSU-21
• Controlled computers: 2
• Keyboard port type: USB
• Mouse port type: USB
• Connectors: 2 × USB-B (male, inputs), 1 × USB-A (female, output)
• Dimensions (W×D×H): 85 × 120 × 28 mm
• Weight: 0.15 kg
• Colour: White
• Certification: RoHS

How to use

Connect the two USB-B male cables to the USB ports of each computer and connect your USB device (or a USB hub with multiple devices) to the USB-A female port on the switch. Select the active computer according to the product manual or switching method provided by the device. No external power supply is required; the switch draws power from the connected computers' USB ports.

Recommendations

Use quality USB cables and, if connecting multiple devices, a powered USB hub for reliable operation with high-power peripherals such as some multifunction printers or scanners.